| Filing | Description | Date Filed | Size ![]() |
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| 424B3 | prospectus filed pursuant to rule 424 | Jan 5, 2009 | 272.4 KB |
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| 424B3 | prospectus filed pursuant to rule 424 | Jan 6, 2009 | 272.4 KB |
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| 8-K | current report | Feb 28, 2006 | 72.6 KB |
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| 10-K | annual report | Mar 27, 1996 | 263.2 KB |
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| 10-K | annual report | Mar 31, 1999 | 291.7 KB |
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| 8-K | current report | Aug 4, 2011 | 195.1 KB |
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| 8-K | current report | Aug 5, 2010 | 211.5 KB |
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| 8-K | current report | Aug 8, 2005 | 88.6 KB |
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| 10-K | annual report | Mar 19, 1997 | 283.3 KB |
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| 8-K | current report | Nov 5, 2010 | 208.0 KB |
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| S-3 | registration statement | Jun 21, 2006 | 132.3 KB |
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| 8-K | current report | Nov 4, 2011 | 199.5 KB |
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| S-3 | registration statement | Jul 5, 2006 | 133.1 KB |
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| S-3 | registration statement | Dec 16, 2008 | 306.9 KB |
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| 10-K | annual report | Mar 31, 1998 | 301.9 KB |
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| 8-K | current report | Nov 4, 2005 | 87.9 KB |
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| 8-K | current report | Mar 8, 2011 | 243.6 KB |
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| 10-K405 | annual report | Mar 30, 2000 | 313.0 KB |
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| 10-K405 | annual report | Mar 29, 2002 | 308.5 KB |
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| S-3 | registration statement | Dec 21, 2011 | 275.3 KB |
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